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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_ | 5 #ifndef WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_ |
6 #define WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_ | 6 #define WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_ |
7 | 7 |
8 #include "base/callback_old.h" | 8 #include "base/callback_old.h" |
9 #include "media/base/filters.h" | 9 #include "media/base/filters.h" |
10 #include "media/base/pipeline_status.h" | 10 #include "media/base/pipeline_status.h" |
11 | 11 |
12 namespace webkit_glue { | 12 namespace webkit_glue { |
13 | 13 |
14 // An interface that allows WebMediaPlayerImpl::Proxy to communicate with the | 14 // An interface that allows WebMediaPlayerImpl::Proxy to communicate with the |
15 // DataSource in the pipeline. | 15 // DataSource in the pipeline. |
16 class WebDataSource : public media::DataSource { | 16 class WebDataSource : public media::DataSource { |
17 public: | 17 public: |
18 WebDataSource(); | 18 WebDataSource(); |
19 virtual ~WebDataSource(); | 19 virtual ~WebDataSource(); |
20 | 20 |
21 // Initialize this object using |url|. This object calls |callback| when | 21 // Initialize this object using |url|. This object calls |callback| when |
22 // initialization has completed. | 22 // initialization has completed. |
23 virtual void Initialize(const std::string& url, | 23 virtual void Initialize(const std::string& url, |
24 media::PipelineStatusCallback* callback) = 0; | 24 const media::PipelineStatusCB& callback) = 0; |
25 | 25 |
26 // Called to cancel initialization. The callback passed in Initialize() will | 26 // Called to cancel initialization. The callback passed in Initialize() will |
27 // be destroyed and will not be called after this method returns. Once this | 27 // be destroyed and will not be called after this method returns. Once this |
28 // method returns, the object will be in an uninitialized state and | 28 // method returns, the object will be in an uninitialized state and |
29 // Initialize() cannot be called again. The caller is expected to release | 29 // Initialize() cannot be called again. The caller is expected to release |
30 // its handle to this object and never call it again. | 30 // its handle to this object and never call it again. |
31 virtual void CancelInitialize() = 0; | 31 virtual void CancelInitialize() = 0; |
32 | 32 |
33 // Returns true if the media resource has a single origin, false otherwise. | 33 // Returns true if the media resource has a single origin, false otherwise. |
34 // | 34 // |
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50 // once WebMediaPlayerImpl::Proxy is fixed so it doesn't have to track | 50 // once WebMediaPlayerImpl::Proxy is fixed so it doesn't have to track |
51 // WebDataSources. Proxy only has to track WebDataSources so it can call Abort() | 51 // WebDataSources. Proxy only has to track WebDataSources so it can call Abort() |
52 // on them at shutdown. Once cancellation is added to DataSource and pause | 52 // on them at shutdown. Once cancellation is added to DataSource and pause |
53 // support in Demuxers cancel pending reads, Proxy shouldn't have to keep | 53 // support in Demuxers cancel pending reads, Proxy shouldn't have to keep |
54 // a WebDataSource list or call Abort(). | 54 // a WebDataSource list or call Abort(). |
55 typedef Callback1<WebDataSource*>::Type WebDataSourceBuildObserverHack; | 55 typedef Callback1<WebDataSource*>::Type WebDataSourceBuildObserverHack; |
56 | 56 |
57 } // namespace webkit_glue | 57 } // namespace webkit_glue |
58 | 58 |
59 #endif // WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_ | 59 #endif // WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_ |
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